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Story and roster updated 9/9.
Wyatt Mathisen was one of a few 2012 Draft picks to make an immediate impact, earning a spot on the Gulf Coast League's All-Star team Monday.

Mathisen, a catcher the Pirates selected in the second round out of Calallen (Texas) High School, hit .295 with a homer, 15 RBIs and 10 steals for the GCL Pirates.

Selected as the DH, his teammate Jin-De Jhang was named the squad's catcher. They were joined in the infield by Tigers first baseman Jesus Ustariz, Yankees second baseman Jerison Lopez, Astros third baseman Darwin Rivera, Twins shortstop Aderlin Mejia and Pirates utilityman Matt Foat. Foat ranked second in the league with a .333 batting average and .404 on-base percentage.

The outfielders include Austin Schotts (Tigers), Jeremias Pineda (Twins) and Jose Colorado (Red Sox). Pineda led the GCL with a .365 average and 23 stolen bases in 52 games. He was traded from the Red Sox to the Twins during the GCL season and batted .421 after the move.

A pair of Tigers prospects made the team, with starter Yorfrank Lopez joining reliever Jose Valdez as All-Star pitchers. Valdez had 15 saves in 22 innings for the GCL Tigers, while Lopez won five games.

The team was selected by Major League Baseball Advanced Media and the GCL -- the league is considered a Rookie-level "complex" league and is operated by Minor League Baseball.

Here's the full roster:

Gulf Coast League All-Stars

NAME

POS

TEAM

MLB ORG

Jin-De Jhang

C

Pirates

PIT

Jesus Ustariz

1B

Tigers

DET

Jerison Lopez

2B

Yankees

NYY

Darwin Rivera

3B

Astros

HOU

Aderlin Mejia

SS

Twins

MIN

Jeremias Pineda

OF

Twins

MIN

Jose Colorado

OF

Red Sox

BOS

Austin Schotts

OF

Tigers

DET

Wyatt Mathison

DH

Pirates

PIT

Matt Foat

UT

Nationals

WAS

Yorfrank Lopez

SP

Tigers

DET

Jose Valdez

RP

Tigers

DET

Danny Wild is an editor for MLB.com.
This story was not subject to the approval of the National Association of Professional Baseball Leagues or its clubs.